ID 原文 译文
14795 针对输电线路长期使用或者因其他外界不利因素引起的断股散股问题,根据导线的缺陷及现有的人工检修方式的不足,提出一种基于matlab图像识别的输电线路断股散股检测方法,可用于输电线路的断股散股检测。 In view of the problem of broken and scattered strands of transmission lines caused by long-term use of transmission lines or other adverse external factors, according to the defects of wires and the shortcomings of existing manual maintenance methods, a detection method of broken and scattered strands of transmission lines based on MATLAB image recognition is proposed, which can be used for the detection of broken and scattered strands of transmission lines.In this paper, the image quality is improved by image enhancement and image denoising on the collected transmission line images.
14796 本文通过对采集的输电线路图像进行图像增强及图像去噪,改善了图像质量,然后利用基于matlab的直线检测及缺陷检测算法,识别输电线路是否出现断股散股问题。 Then, the line detection and defect detection algorithm based on Matlab is used to identify whether the transmission line has broken and scattered strands.
14797 摄影测量图像处理的高精度误差补偿法文章研究的中心,首先对摄影测量图像处理发展现状展开分析,认识到摄影测量的应用价值。 High precision error compensation method of photogrammetry image processing is the research center of this article. Firstly, the development of photogrammetry image processing is analyzed, and the application value of photogrammetry is realized.
14798 其次从离散化误差的研究、误差特征的研究两方面对离散化误差的影响进行掌握,最后以最小二乘法为切入点,积极展开高精度补偿法研究,目的在于有效实现误差补偿的高精度。 Secondly, the influence of discretization error is studied from two aspects: the study of discretization error and the study of error characteristics. Finally, the research of high-precision compensation method is actively carried out with the least square method as the starting point, in order to effectively realize the high-precision error compensation.
14799 本文制定了传统变电站中继电保护二次回路状态检测工作的方案,并详细研究该过程所采取的健康度评估方法,最后给出了根据二次回路健康度进行处理的意见。 This paper has formulated a scheme for detecting the status of the secondary circuit of the relay protection in traditional substations, and studied the health assessment methods adopted in the process in detail, and finally gave suggestions on how to deal with it according to the health of the secondary circuit.
14800 传统的400kA量级电流传感器校准是通过等安匝法实现的,用小量程高精度的标准电流传感器校准穿过N匝线圈的大量程低精度的电流传感器,被校电流传感器会受到N匝线圈中心磁场的干扰,影响测量结果 ; The calibration of the traditional 400 k A current sensor is achieved by the equal ampereturn method. A low-range high-precision standard current sensor is used to calibrate a large-range lowprecision current sensor that passes through the N-turn coil. The current sensor being calibrated will be affected by the N-turn coil.
14801 根据本单位具有的大功率测试平台,探索通过并联分流的方法,校准400kA大量程电流传感器,通过现场测量,分析得出可以用该方法进行400kA等超大量程电流传感器校准。 The interference of the central magnetic field affects the measurement results; according to the high-power test platform of this unit, we explore the method of parallel shunting to calibrate the 400 kA large-range current sensor. Through on-site measurement, analysis shows that this method can be used to carry out 400 kA and other ultra-large ranges. Current sensor calibration.
14802 断路器在每次检修后应进行低电压合闸、跳闸试验,其目的是保证断路器在变电站的操作电源为允许变动范围之内而且又偏低时,仍能可靠动作。 Low voltage closing and tripping test should be carried out for the circuit breaker after each maintenance. The purpose is to ensure that the circuit breaker can operate reliably when the operating power supply of the substation is within the allowable range of variation and low.
14803 断路器低电压动作特性在断路器检修时都要进行测试。 The low voltage action characteristics of circuit breaker should be tested during the maintenance of circuit breaker.
14804 如果断路器动作电压过高或过低,就会引起断路器误分闸和误合闸,以及在断路器发生故障时拒绝分闸,造成事故,甚至影响整个电网的稳定。 If the action voltage of the circuit breaker is too high or too low, it will cause the circuit breaker to open and close by mistake, and refuse to open when the circuit breaker fails, which will cause accidents and even affect the stability of the whole power grid.